Carriage-stop mechanism for type-writing machines.



PATENTBD MAY 7, 1907.

w. R. POX & G. J. BARRETT.

MECHANISM FOR TYPE WRITING MACHINES.

APPLICATION FILED 1330.6, 1902.

CARRIAGE STOP Witrgesses:

No. 852,427. TATENTBD MAY '7, 1907.

W. R. FOX & G. J. BARRETT. CARRIAGE STOP MECHANISM FOR TYPE WRITINGMACHINES.

APPLICATION FILED 1330.6. 1902.

2 SHEETS-SHEET B.

p anyi ng drawing forming a particularly stop mechanism for controllingUNITED STATES PATENT OFFICE.

-WILLIAAT R. FOX AND GLENN J. BARRETT, OF GRAND RAPIDS, MIGH- IGAN,ASSIGNORS TO RAPIDS, MICHIGAN.

FOX TYPEWRITER CO. LTD., OF GRAND- Specification of Letters Patent.

Patented ma 7, 1907.

Application filed December a, 1902. Serial a. 134,109.

To all w/wnuit may concern:

Be it knownithat we, WILLIAM R. Fox and GLENN J. BARRETT, citizens ofthe United States, residing at the cit of Grand Rapids, in the county ofKent anc State of Michi an, have invented certain new and usefulmprovement-s in Carriage-Stop Mechanism for Type-Writing Machines, ofwhich the following is a specification.

This invention relates to improvements in typewriting machines, and itrelates more means therefor.

The objects of the invention arerFirst, to rovide improved means forreleasing the ine stop mechanism. Second,

the of the carriage on the machine. T provide an improved detachableline stop for osit'ion use in a typewriting machine which can be readilyapplied or removed as desired. Fourth, to provide an improved adjustablestop.

Further objects relating to details will definitely appear in thedetailed description to follow.

W e accomplish the objects of our invention by-the devices and meansdescribed-in this specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of our invention is fully illustratedin the accornpart of this specification, in which- I Figure 1 is a sideelevation of a part of a typewriting machine with our invention inposition, showing the general relation of the parts. Fig. 2 is a rearelevation view of the parts appearing in Fig. 1. Fig. 3 is a plan viewof the rear scale of the machine with the adjustable stops thereon, theposition of the line stop also being indicated. Fig. 4 is a detailsectional view of the principal adjustable line stops, taken on a linecorrespondin to line 4- 1 of Fig. Fig. 5 is an enlarged detailtransverse sectional view takenon a line correspoi'iding to line 5-5 ofFigs. 3 and is a plan view of one of the de- I IS 4. Fig. (i tachablcstops. Fig. 7 view of the same. Fig. 8 is a sectional view on a linecorresponding to line 8-8 of Fig. 6,

to the margin stop and releasing i to provide a lird, to

showing the manner in which the removable i sto s embrace the graduatedmargin rack F.

n the drawing all of the sectional views are taken looking in thedirection of the little arrows at the ends of the section lines, andsimilar letters of reference refer to similar parts throughout theseveral views.

Referring to the drawing, A is the main frame of the machine, and A isthe top on which rests the carriage B which supports the platen O, allof which are described in the principal application, from which portionsof this case have been divided out, namely the application filedDecember Arms B extend to the rear from the carriage B, and secured tothe said arms is a graduated margin rack F, which is parallel to therack of the escapement mechanism. On this graduated margin rack F aremounted two adjustable slides, Fig. 4 shows a secvtional detail of oneof these slides, F bein the rack, G the sheet metalframe or she] whichcarries the pawl or dog G. This pawl G is pivoted in the shell at g, asshown in Fig. 3, the up er portion of which pivot is in the form of athumb piece or handle, as shown in Fi 5. The ortion of the which teethwhich mesh with the teeth in the rack F.

G is a spring attached to the pawl G, tendingto hold the teeth of thesame normally in mesh with those of the rack .G is a stopping portion ofthe dog or pawl pawl or dog G engages t e rack F, is provided with Gwhich is extended slightly beyond the bal of the pawl G slide freelyover those of the rack F in either-direction, thus enabling theadjustable slide tobe instantly placed at any point upon therack.

At the rear of the top plate of the machine pivote This rock shaft isprovidedwith an upwardly extending stop D which serves to limit themovement of the carriage, acting IOO d a rock shaft D, between pivot isan inverted plan points-b 7/.

as a stop for the dog or pawl Gr. Extending from the rock shaft Ddownward is another arm D. By reference to Fig. lwill be seen the bellcrank E shown mostly in dotted lines pivoted in the right side of themachine at a. From the upper extremity of this bell crank lever is awire D connecting with the arm D of the rock shaft D. The forward end ofthe bell crank lever E bears a finger button E which is part of thekeyboard of the machine. When this finger button E is depressed, theupwardly extending arm D of the rock shaft is swung backward, moving thestop arm D out of the line of travel of the dogs G. It will be observedthat the rock shaft with its arms and connections constitutes a stopmeans.

The operation of the marginal adjusting device is as follows: When themargin of say ten spaces is desired at the left edge of the sheet, theleft thumb pieceg of the shell G, (see Fig. 2,) is grasped and the shellmoved along upon the rack F until the inside edge of the shell alineswith the point in the graduation marked 10. Vhen the carriage is movedto the right the projectingportion of the pawl G strikes the arm D whenthe pointer alines with the 10 graduation upon the carriage,. scale,.When it is desired to WI te in the margin so provided for, the fingerbutton E is depressed, thus swinging the arm D back out of the way andthe carriage is then free to be moved to the limit of its travel. Theback side @of the shell being beveled as shown, does not engage the armD-- which simply swings back until the dog G passes it, and then fallsback into normal position, and the machine will again stop at 1O whenthe carriage is returned in the regularmanner. The margin on the rightside of the sheet is set in the same manner, and the rack beinggraduated from left to right the same as the carriage scale cowering theentire number of characters of the printing line, it is possible to seteither margin anywhere upon the scale. In other words, it is possible toset the carriage to start at, say 5, and lock at15,

' or to start at and lock at 75. When the margin is set for the righthand side of the printed page, the bell and its trip are such that itisthus set to ring eight or more spaces before the end of the line isreached. Also on this graduated margin rack, we place removable stops H.Each stop is struck up from a piece of sheet metal, a portion beingfolded down over the rack F, as clearly ap pears in Fig. 8, to properlyembrace the same; a finger H is turned outward, which is square on theside toward the stop arm on the machine frame and beveled on the backside therefrom. A portion 4, is turned down at right angles to themargin rack F, and the edge of this projects so that it engages theteeth in the edge or little notches of this rack F, so that by pickingup the stop H it canbe teeth adapted to fit the teeth or rality ofslidable lifted off the rack and set down upon it at any desired point,thus securing the effect of a series of adjustable stops, enabling theoperator to begin at any desired point on. the line and continue untilastop is reached, and

then release the stop and write over another space, until another stopis reached which ,may be in like manner released, and so on, as manyspaces as maybe desired or required in the particular work in hand.-This enables tabulating or the placing of a matter in col-' umns offigures, or dividingof the sheet into columns, like a newspaper. It isobvious that it would not be desirable'to place a num ber of slidingmargin stops on this graduated margin rack, for they would consume toomuchspace on the rack, making it unnecessarily long, so that it isdesirable that in connection with rack, detachable stops'be provided.

Having thus we claim as new and desire .to secure by Letters Patent is,

1. In a typewrlting machine, amarginal .9

adjusting device consisting of the combine;- tion of the rack F havingteeth or notches upon one side and bearing a graduated scale, supportedat the rear of the typewritencarriage and parallel with the line oftravel thereof; a plurality of slidable stops mounted upon said rack F,consisting of theshells G formed offsheetsmetal to fit said rack'F,pawls or dogs G. pivotally mounted-in said shells having a projection orstopping por} tion G at one end, and at the other said rack F,- springsattached to said pawls G to hold the same normally in en agement withsaid'rack; fingarfpieces gthe ower extremity of which acts'as the pivotfor-the said the adjustable stops on the notches in' dogs G therock.shaft,D mounted upon the top-plate of the 'typewriting machine;having an upwardly projecting portion 1) which is normally in the linebf travel of the said projec'tion G said portion D being adapted toswing out of the line of travel of the said dogs G; and connectionbetween said rock shaft D and a bell crank E carrying the finger buttonE and-pivoted to the side of the typewriter frame, all coacting for thepurpose specified and substantially as specified.

' 2. In a typewriting machine, adjusting device consisting of thecombina tion of a rack having teeth or notches and bearing a graduatedscale, supported at the rear of the'typewriter carriage the line oftravel thereof; and having a plushells made of sheet metal formed tofitsaid rack; pawls or dogs i'votally mounted in said-"shells such pawlsaving a projection or stopping portion atone end, and at the other,teeth adapted to fit the teeth or notches in said rack and a springattached to said pawls or dogs to hold same normally in engagement amarginal parallel with stops thereon consisting of s described'our'invention what with rack; 'a suitable finger piece for said slidablestop'the lower extremit 3. In a typewriting machine,

said shel a pivoted stop means mounted u on the top-plate ot thetypewriting mac 1ine', said stopmeans havingan upwardly.

rejecting portion which is normally inthe ine of travel of the saidslidable stops, and

adaptedl'to swing back out ofthe line of travel of said slidable stops,and connections between said pivoted sto means and a bell crank carryinga finger utton at one extremity, saidbell crank being ivoted to the sideof the typewriter frame, a l,.coacting for the purpose specified andsubstantially as described.

a marginal adjusting device consisting of the combina-- end, and at theother teeth suitable finger p1ece for said slidable stops,

ally mounted in said shells, such means having an-u wardly tion which isnorrna ly in the pivoted to the side all i coa'ctin tion-of 'a rackhaving teeth or notches, supported at. the rear of. thetypewriter'carriage arallel with the line of travel thereof and aving'a'plurality of slidable stops thereon consisting of shells made ofsheet metal formed to fit said rack; pawls or dogs pivotpawls having aprojection or stopping portion at one adapted to fit the teeth ornotches in said rack and a spring attached to said pawls or dogs tohold-the same normally in engagement with said rack; a

the. lower extremity of which acts as a pivot for the said pawls ordogs, in the said shell; 9. pivoted stop plate ofthe typewritingmachine, said stop projecting porine of travel of the said slidablestops and ada ted to swing back out ofthe line of travel of saidslidable stops, andc'onnections'between said pivoted stopmeans and abell crank carrying a finger button at one extremity said bell crankbeing of the typewriter frame, for the pur ose specified, andsubstantial y as describe I 4. In ja typewriting machine, a marginaladjusting device consisting of the combination of a rack. having teethor notches supported at the rear of the typewriter carriageparallel-with the line of travel thereof and having a plurality ofslidable stops thereon,

consisting of shells made of. sheet metal formedto fit said rack; pawlsordogs piv ot .ally mounted in said shells, such pawls having aprojection or stopping portion at one stop means mounted upon thetop-plate of the typewriting machine, said stop means having an upwardlyprojecting portion which is normally in the slidable stops, and adaptedto swingback out of ,which means mounted upon the top--- stops the lowerex line of travel of the said pivoted stop stantiall'y as described.

5. In a typewriting machine atmarginaladjusting device consisting of thecombination of a rack having teeth or notches, supported at the rear ofthe typewriter carriage parallel with the line of travel thereof andhaving a plurality of slidable stops thereon, consisting of shells madeof sheet metal formed to fit said rack; pawls or dogs pivotally mountedin said shells; a suitable finger piece for said slidable stops, thelower extrer'nity of which acts as a pivot for the said pawls or dogs,in the said shell; a pivoted typewritingmachine, said stop means havingan upward y mally in the line of travel of the said slidable stops, andadapted-to swing back out of the line of travel of said slidable stops,and connections between said pivoted stop means anda bell crankcarryinga finger button at one extremity said'bell crank being ivoted atone side of the typewriter frame, a l coact. ing for the purposespecified and substantially as described. v

.6. In a typewriting machine, a marginal adjusting deviceconsistin ofthe combina-. tion of a rack having teet or notches supported at therear of the typewriter carriage arallelwith the line of travel thereofand having a plurality of slidable stops thereon; a suitable fingerpiece for said slidable stops, the lowerextremity of which acts as apivot for the said pawls or dogs, in the said shell a pivoted stop meansmoiintejd upon the'topplate of the typewriting machine,.said stop meanshaving-an upwardly projecting po'rtion-whirh is normally in the line oftravel of the said slidable stops, and adapted to swin backout of theline of travel of the-said slida le stops, and connections between saidpivoted stop means and a bell crank carrying a finger button at oneextremity said, bell crank'being pivoted td the side of't'he typo-Writer frame, all coacting for the purpose specified, and substantiallyas described. a typewriting machine, a marginaladjusting deviceconsistin of the combina tion of a rack, having teet or notchessupported at the' rear of the typewriter carriage parallel with the lineof travel thereof and aving aplurality ofslidabl'e stops thereon asuitable finger piece for each of said slidable stops; a 'ivotedstopmeans mounted upon the to -p ate of the typewriting machine, its axis 0rotation being parallel-with said rack; said stop means-having an uwardly projecting portion which is norrna ly in the line of travel ofthe said slidable stops, and ada ed off the line of travel of the saidslidable stops, I

all coacting for the purpose specified and substop means mounted uponthe top plate of the 8 5 projecting portion which is nor-.

loo

6o riage parallel with the line of travel thereof,

to swing back out of the line of travel of said slidable stops, andconnectionsbetween said pivotal stop means and a bell crank carrying afinger button at one extremity, said bell crank being pivoted to theside of thetype- Writer frame, all coacting for the purpose specifiedand substantially as described.

8. In a typewriting machine, a marginal adjusting device consisting ofthe combination of a rack havingteeth or notches and supported at therear of the typewriter carriage parallel with the line of travelthereof, a plurality of slidable stops mounted u on said rack,a'suitable finger piece for said s idable stops; a ivoted stop meansmounted uponthe top-p ate of a typewriting machine,

- its axis of rotation being, parallel with said rack; said stop meanshaving an upwardly projecting ortion which is normally in the line oftrave of said slidable stops, and-means for throwing said upwardlyprojecting portion of said pivotedstop means back out of the line oftravel of said slidable stops, substantially as described.

'9. In a typewriting machine, a marginal adjustingdevice consisting ofthe combination of a rack having teeth or notches and supported at therear of. the typewriter carriage parallel with the line of travelthereof, a plurality of slidable stops mounted upon said rack; a pivotedstop means mounted upon the top-plate of a typewriting machine its axisof rotation being parallel with said rack;

said stop means having an upwardly projecting portion which is normallyin the line of travel of said slidable stops, and means for throwingsaid upwardly projecting portion of said pivoted stop means back out ofthe line of travel of said slidable stops, substantially as described. jI

10. In a typewriting machine, a marginal adjusting device consisting ofthe combination of a rack having teeth ornotches and supported at therear: of the typewriter carriage parallel with the line of travelthereof, a plurality of slidable stops. mounted upon said rack; a stopmeans mounted upon the top-plate of a typewriting machine its axis ofrotation being parallel with said rack; said step means having anupwardly projecting portion which is normally in fi'i'elin'eot travel"of said slidable stops, and means for throwingsaid upwardly projectingportion of said pivoted stop means back out of the line of travel ofsaid slidable stops, substantially as described.

11. In a typewriting machine, a marginal adjusting device consisting ofthe combination of a rackhaving teeth or notches and supported at therear of the t pewriter car a plurality of slidable stops mounted uponsaid rack; a stop means mounted uponthe top-plate of a typewritingmachine its axis of rotation being parallel with said rack;

said stop means having a projecting portion which is normally in theline of travel of said slidable stops, and means for throwing said;

projecting ortion of said pivoted stop meansout of the ine of travel of.said slidable stops, substantially asdescribed.

12. In a ty ewriting machine, a marginal adjusting device consisting "ofthe combina tion of a rack having teeth or notches and supported at therear of the typewriter car-' riage parallel with the line oftravelthereof,

aplurality of slidable stops mounted upon a rack and supported at theback of theframe 1 mally into engagementthe said adjustable stops, andconnections to a key lever for actuating the rock shaft to rele'ase thestop mechanism.

13. In a typewritingmachine, a marginal adjusting device consisting ofthe combination of a rack having teeth or notches and supported at therear of the typewriter carria e parallel with the line of travelthereof,

a s idable stop mounted upon said rack, a rock shaft D parallel withsaid rack and'supported at the back of'the frame of themachine bylongitudinally adjustable, bearings, a stop on said rock s'haft arranged"toproject normally into engagementwith the said adjustable stop, andmeansfor actuating the rock shaft to release the stop mechanism.

' 14. In a typewriting machine, a marginadjusting slide, consisting ofthe combination of a'shell G of 'sheet metal formed in Ushape,

the dog or pawl G pivotally mounted in said shell, said dog having astopping portion G' at one end and a point, or series of points, at theother, a spring G for holding said dog or pawl in normal position, and afinger piece attached to said dog, and projecting beyond the shell, thelower portion of which serves as a pivot for the saiddog, or pawl,substantially as described. 4

15. In a typewriting machine, a margin adjusting slide consisting of thecombination of the shell of sheet metal formed inU-shape, a dog or'pawlpivotally mounted insaid shell said dog or pawl having a stoppingportlon atone end, and a point or series of points at the other, aspring for holding said dog or pawl normally in position, and a fingerpiece attached to said dog and projecting beyond said shellsubstantially as describeda,

16. In a typewriting machine, a margin adjusting slide consisting ofthecombination of a shell in U-shape, a dog or pawl pivotally mounted insaid shell, said dog or pawl having a stopping portion at one end, and apoint or series of points at the other, a spring for holding said dog orpawl normally inosition,.and a finger piece attached to said pg lofinger piece attached to said dog and projecting beyond said shell,substantially as described.

18. In a typewriting machine, a margin adjusting slide consisting of thecombination -of a shell in U-shape, a dog or pawl mounted in said shell,said dog or pawl having a stopping portion at one end, and a point orseries of points at the other, a spring for holding said do or pawlnormally in position, substantial y as described.

'19. In a typewriting machine, the combination of a rack or bar; a slidemounted thereon carrying a stopping dog-or pawl for ed to conform to tengaging said rack pivotally mounted in said slide at a point out ofline with the portion of said do or pawl which stop the carriage, and

the rac engaging portion thereof, substantially as described. v

20. In a margin stop for typewriters, the combination with a notched baror rack, of a stop consisting of a piece of sheet metal foldie said barwith a projecting portion to form the stop, a portion of the plate beingturned at substantially right I angles to the said rack and projectin toengage the teeth or notches whereby t e stop can be readily attached ordetached by crowding it onto the rack, as specified.

In witness whereof, we have hereunto set our hands and seals in thepresence of two witnesses.

' WILLIAM R. FOX. [L. s.] GLENN J. BARRETT. [1; s.]

Witnesses:

.EDWARD G. MATTER, GEO. K. McMULLEN.

